Using 300 spotlights and an intercom, Raphael Lozano-Hemmer's Voice Tunnel in New York City has turned the Park Avenue Tunnel into a concert of voices and light as part of the DOT's Summer Streets program. Learn how in the video above.

DOT Summer Streets:
nyc.gov/html/dot/summerstreets/html/home/home.shtml

More on Rafael Lozano-Hemmer:
youtu.be/W6SfnkwZ3Hg

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